When will I die?
A free death clock with the receipts: 10 quick questions, then your estimated death date, the weeks you have left and exactly which studies moved the number — no sign-up, no app, recalculated live.
Method: baseline from the US Social Security Administration Period Life Table (2021), lifestyle adjustments from peer-reviewed cohort studies via the Gompertz model (Spiegelhalter, BMJ 2012). A statistical estimate for education — not medical advice, not a prophecy. Prefer the raw grid? See your life in weeks or the longevity lifestyle blender.
How does this death clock work?
Your baseline comes from the US Social Security Administration Period Life Table (2021) — the actuarial table used for Social Security. Each lifestyle answer then adds or removes years using large published studies (smoking: NEJM 2013; exercise: PLOS Medicine 2012; sleep, diet, alcohol and more), converted with the standard Gompertz mortality model (Spiegelhalter, BMJ 2012). Every factor shows its source.
Is a death clock accurate?
Nobody can predict one person's death. This reports the statistical life expectancy for people with your profile — the honest version of the answer — and roughly half of them live longer. Treat it as a planning number and a nudge, not a prophecy.
What increases life expectancy the most?
In the underlying studies: not smoking (about 10 years versus a current smoker), regular exercise (up to ~4 years), 7–8 hours of sleep, moderate alcohol, and daily movement. The quiz shows the source behind every question as you go.
Is this a substitute for medical advice?
No. It is a statistics-based educational tool. For anything about your own health, talk to a clinician.